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公开(公告)号：US10535142B2
公开(公告)日：2020-01-14
申请号：US15864279
申请日：2018-01-08
Inventor： Kwang Yong Kim , Jang Woon Baek , Yun Su Chung , Yun Won Choi
Abstract: Provided is a method of separating a foreground and a background by extracting a depth image through a stereo camera, generating an occupancy grid map on the basis of the depth image, predicting a free space, and computing a membership value, the method including setting a threshold value of a foreground object existing in a free space boundary region of the predicted free space, determining whether the membership value reaches the threshold value of the foreground object while the membership value is computed, terminating the computing of the membership value when it is determined that the membership value being computed reaches the threshold value of the foreground object in the determining, and separating a foreground and a background through the computed membership value.
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公开(公告)号：US12026231B2
公开(公告)日：2024-07-02
申请号：US17497771
申请日：2021-10-08
Inventor： Joon Goo Lee , Jang Woon Baek , Kil Taek Lim , Yun Won Choi , Byung Gil Han
CPC classification number: G06F18/217 , G06T7/194 , G06V20/52 , G06T2207/10024 , G06T2207/20036 , G06T2207/20081 , G06T2207/20084 , G06T2207/30232
Abstract: Provided is a method of creating a local database for local optimization of an object detector based on a deep neural network. The method includes performing preprocessing on an image extracted from real-time collected or pre-collected images from an edge device, modeling a static background image based on the image received through the pre-processing unit and calculating a difference image between a current input image and a background model to model a dynamic foreground image, detecting an object image from the image based on a training model, and creating a local database based on the background image, the foreground image synthesized with the background image, and the object image synthesized with the background image.
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3.发明申请公开(公告)号：US20180197295A1
公开(公告)日：2018-07-12
申请号：US15864279
申请日：2018-01-08
Inventor： Kwang Yong KIM , Jang Woon Baek , Yun Su Chung , Yun Won Choi
CPC classification number: G06T7/194 , G06T7/12 , G06T7/13 , G06T7/136 , G06T7/143 , G06T7/593 , G06T7/60 , G06T2207/10012 , G06T2207/10028 , G06T2207/20076 , G06T2207/30261
Abstract: Provided is a method of separating a foreground and a background by extracting a depth image through a stereo camera, generating an occupancy grid map on the basis of the depth image, predicting a free space, and computing a membership value, the method including setting a threshold value of a foreground object existing in a free space boundary region of the predicted free space, determining whether the membership value reaches the threshold value of the foreground object while the membership value is computed, terminating the computing of the membership value when it is determined that the membership value being computed reaches the threshold value of the foreground object in the determining, and separating a foreground and a background through the computed membership value.
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